jeff bush, san mateo, kron 4. >> reporter: and san francisco, if you are receiving your first paycheck. you could notice that it is less. it is probably not a mistake it is because the payroll tax holiday has expired. that was in effect for two years cutting the payroll tax by 2 percent. the congress allowed that to expire and now we are going to see less on our paychecks. and were from $500-$1,200 per year. dan kerman, kron 4. >> reporter: at the n f l store at pier 39 of 49ers skier is a hot ticket. from these official jerseys, everything is selling fast. as soon as the staff put it out people, and get it. the number one item is everything no. 7, the college kaepernick haa :kaepernick. terisa estacio, kron 4 >> in menlo park, facebook shows this wahl will search search within facebook. this is not just competing with google it will allow searchers to only search within your network of friends on facebook. this would be helpful for a local review on a restaurant, facebook is doing a very slow introduction to this. and of course if you like to sign up, facebook .com gabe slate tech rep